{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb2c509a311a236e518f2e0c91a8719730bbfdf0c1af9222f4470c2fae3bcbbd7",
    "signature": "0x40df48573542da7cef8f9c451ecdb96e5c592d05486602e168e94c2120831d467534383b3a73ab5614a6a0f533ebb7e4c61bf09215b2947099972e5f63e076fb1b",
    "signer": "0x02B1Df02df352354507f0E53a1ee270280c3e882",
    "userId": "509083804"
  }
}