{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325624",
    "entityType": "User",
    "nonce": "0x31fdc4de8c1fc2de58942753f3e409ea9400cd5fa173f3912169aee588744763",
    "signature": "0x6b4017743d53b7c99db0e0086de6eacf10c103159eebe3f332bb0c5b8bfb49447ee49961331a764bda43af90a08740fec2d149cfa1730e99e2dc70c50198b0cf1c",
    "signer": "0xa94e4C47a5C11B5C0b4EC90e5166c3AF602dA094",
    "userId": "458060869"
  }
}