{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "143388",
    "entityType": "User",
    "nonce": "0xcd5f0063faf12dce94ed907472c225bf6e99109f44d41439e503d1c4dc27ac3f",
    "signature": "0xf8ec7e19c1167ca031d91de3c26c34852b0c7d89f9ec1dc613e04e79596a32d176328b030ec1bb11f9502eb4957ab8c9b9788ebde3797bd3332b5048d1f446421c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}