{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "677099093",
    "entityType": "User",
    "nonce": "0x7d09c494e2f705fdfefa5a504909cbab06f90374c94173d91293d578998a530a",
    "signature": "0x35e655ad52cf9028d1b7c5aa2ac4bcfa0f99c0c399eaf07eda738bef1e7a44885975247e7a942b98e63dfd11cc17233e97c7196dd74f76a92fcbc88929ee7f901b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}