{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "75549",
    "entityType": "User",
    "nonce": "0x80d3b2022cf137f93f497965ccaf7ae21d2a6eed426b94b686194a11ce4f8724",
    "signature": "0x9beae392d6f2659b96df2502515bf07f889f6ec3a27acb23880a04001feef2f5322bdef09db45e8454dac3191bdfccfdd8c2c646c360f06ead0644dbf56e81b21b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}