{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3827178e6aa80a0c176553a8d5bac731fcb208a5cde5f755e039a56059d95555",
    "signature": "0x6b40fcc08fa86c55b992594e8a0c800a332cb886eccfbd9cc86d078f5d4acf082974a323c71ef73df6614b20c2e9dbcca17faa9ab326a9522f40113f1dbc426e1c",
    "signer": "0x286E31053F87209F966e1009BB419fb4302C7d11",
    "userId": "770972221"
  }
}