{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "139859",
    "entityType": "User",
    "nonce": "0x761d055e0eda7ae9c61f2d5a2f96328c143bf65a836471b7d98c9e4f6eb98d2f",
    "signature": "0xec9b047ee590b1c525477aa1241abd998901e4fb5a617524d69ab17fefb4cd1933d1dd13dbbf39d2063f3ba8adb13f7c5d699fc2bfb5249f5ec0f5e98df5d0281b",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}