{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "806873848",
    "entityType": "User",
    "nonce": "0x50adfc137b71f81b9746375c0ca08944082956d1beec6eaabee54bf50a32718d",
    "signature": "0x2771ef818828a104885f759761950da4355e592263f6c3cf6ad1b1d0c222613c3ec51c14dc0b5a584d6c16c7c69d02dd401cfae7f7dd42c963bbc5d95ebaab001c",
    "signer": "0xDDCce44d487ED1f7297d836241df35AAB6D867b0",
    "userId": "22610281"
  }
}