{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "988934176",
    "entityType": "User",
    "nonce": "0x2b8fe948acf4e37745e48ba358394f6288dfe768a50e73c0bb3e50509678d841",
    "signature": "0x0d0967e3bba55beccd47e0772a814ae13aaf2cb8d23d8c56cdc796b2979f05a14c3ee072ffa9e5165ddd50e820b28c32a01c080c9e8d9b36e36dfb279110667c1b",
    "signer": "0x6b89eeF406A3D10E08768E85967dB17cf7EaCd03",
    "userId": "125044"
  }
}