{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "66375",
    "entityType": "User",
    "nonce": "0x25c20fb85bf43f2fe03995edab6291081a363d629946ba8681b701f6bfe17f82",
    "signature": "0xd570aadfe6457909fc95ff34d2f11695193e3894ac2ec18f85306cbc2be7825e18d7d6a9dfa9efc8afdad7925ae9571673b99aa05e7398d8661a73ceedfebaa21b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}