{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1770462",
    "entityType": "User",
    "nonce": "0x58470098a57abae5b69d50016987cdcc2fbbd2d738ec7dc5c2af52bda51760d4",
    "signature": "0xe0705ca4f628f396260ecbc41e9ea3be4c0332d14f4d4fb5cba23652284b634b2385b238d2cff8ceed1b424a596eb54097be3a675b71b7e8229d2225003d0c2b1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}