curl --request GET \
  --url https://prv.stake.biya.io/stake/buyback/participations

{
  "participations": [
    {
      "id": "<string>",
      "participation_id": "<string>",
      "round_id": "<string>",
      "user_address": "<string>",
      "booked_amount": "<string>",
      "actual_amount": "<string>",
      "claimed_revenue": "<string>",
      "status": 123,
      "submit_tx_hash": "<string>",
      "claim_tx_hash": "<string>",
      "created_at": "<string>",
      "updated_at": "<string>"
    }
  ],
  "pagination": {
    "page": 123,
    "page_size": 123,
    "total": "<string>",
    "total_pages": 123,
    "has_prev": true,
    "has_next": true
  }
}