{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7618",
    "entityType": "User",
    "nonce": "0x6dcf96ffee43372d5037bb80c2a238571493f4168a7e4e37f3c2d9fac310952c",
    "signature": "0x3f37ccc70c8fe41468aeec8682dc623ea49bec01e8610a350919fa87bfac1a6a0b45fdb7fbecb011ca1404d86c565a80fe8f90e63159bf1039556fc33f7ccd951c",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}