{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354908",
    "entityType": "User",
    "nonce": "0x6f390ec84629b78c95abf51871c13fa0eb38dc391e93248860ba5ae85cee97f1",
    "signature": "0x61c370674dabc684b6dfe3f69301e08f4b8bea06e6b901db580eb53eff84e4845ecaa3bcbf8420bd59c5260977b2995a4d2171a13e8d062eee636751a1ece83e1c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}