{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "977815577",
    "entityType": "User",
    "nonce": "0xcc8cebb60b2a3b6fe6ee5713a797c02546080dd3dc31568422c03247cfa4af2c",
    "signature": "0x923b97aaf48d4562c337d707a54156912e12c4c22e0698d515b72da82ac8dc6379bc361a8cae6f4baaf392b8655e71504c5449873d7957a5c541b7b4613db7711c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}