{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "838777725",
    "entityType": "User",
    "nonce": "0x7ccafab341bd2e47d7a70ea5c585e5b680ba177441a2191807b7dd0f8e882c28",
    "signature": "0xafdf99989b9b590277178701a3203d36b1bc70f7206b4f4cd310b51f8330584b52041b2e431e6b438d41662bfeee5aecaef8df2e9c0b1724216cc5f256711e261b",
    "signer": "0xfC070d9d02c152146e3D1B2cD4B03FD7a3CA1AB0",
    "userId": "539537193"
  }
}