{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "983610770",
    "entityType": "User",
    "nonce": "0x590259a0adf993f02ff72303fc9e4ab08b60558cb8bc5c6ba94ecdcfbcbd6b39",
    "signature": "0x9c9ccee79fd52963873f80be5ec373bcfe739c9274bc6d7e8566604a00d8dab9424ecd0b394cb8142d58a24ef50f10b0a5a0f9e8408dbd6fc83dc07f1ffa9f3f1b",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}