{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "6220",
    "entityType": "User",
    "nonce": "0x7ac09ac1ea5bed7bb373fe51e50f22be8f1b63973956fdbcb77747a21a7091bf",
    "signature": "0x93785ce47817654d7875fa02c724e7d41783096ff3621ffd3e2725ca5a1db0c15d53eee8a15346b7bb0626398379504fbd6dab4c62c47e4167bb8147032b3bdc1c",
    "signer": "0x7e9720d8C73bd719B01E9408E15C2884254beC2a",
    "userId": "234846549"
  }
}