{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x79a682b50ebfe4590067a77ab9bf1d786896c3d23be584b218fd322bbe52da3d",
    "signature": "0x6e4a0fd47da6982a48aaa560665c0837e3b86e3ea5f6386c80cf0ec4c838b41510e3e4d01ac399e53c04ab082b0dae9c0f0ce0c2db8793a6ecd2063d1d0525981c",
    "signer": "0xaB3cb188f1f007f3a3Ed10BDd1eF15345eDDE18C",
    "userId": "279192109"
  }
}