{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "38576",
    "entityType": "User",
    "nonce": "0x9aca9c6eccb8c8a9f9a700702e4050315a07459fff88df4c8b85dc74df9f52cb",
    "signature": "0x5dda0b0137c94c912f45d1bb94eaea64f83e3b6d61906cfbea576217d2ae92bf2466191c7da27c65876e36b2b68ed11544a7996e65c99c6ed08d76de377809f01c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}