{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x639a0628137cf045e80b4380c3f4a57bc13acaf3b9847a36659fad041cb702de",
    "signature": "0xbc1f033b2027c2725d0723fb2308d41a84c214cc36dad9c3a2039c92e746a4ab20e677e243fb8feceb90f4b4e88330b46bf35504e999eb6293dbbb888a1666b71b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}