{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "964899801",
    "entityType": "User",
    "nonce": "0x301d35e0b8e44492d686dd674f61d45cb19581f23df86dc5bb8f73ef4ebbbfc4",
    "signature": "0x3b74d0a29095a4d8cfc519c91e4d8a5e0c79ca25427940ef15f3c2945cdf6c202f474656c79ba5fa55a5878438461c840d1d729bbc115fceb89f4bf9c64248fa1b",
    "signer": "0x27eB4b469aE053b72c26B3e9c68a655390Fe24fB",
    "userId": "42216"
  }
}