{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54988",
    "entityType": "User",
    "nonce": "0x08b765897108b6e9cf7a057b733a8039b3b9c8a28b74673e404560926b154d00",
    "signature": "0xa0b3c56d4264dac558726757fa2a97c7fbad082afd2025fe6347ac4bae1796c84e76b4014ca6343ac8a875587c42bbf0bc96c2c90bf71cd6c06ff16bb377a0fd1b",
    "signer": "0xC77FC375F0505f98061bDD371Ad3b99D16525d71",
    "userId": "187154748"
  }
}