{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "128114836",
    "entityType": "User",
    "nonce": "0xa1ab86228cc869315a787258bb532a86f87548b175d79cb0406b0d1b23acc7ef",
    "signature": "0xb5c71639dc1de5a4481a45c65b12adbea83a93798e3abe48182e225db6b5acf41a838317aa4e42e10079c991c3b9da1a81cb8dec21291a947de061aeaaff1b381c",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}