{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x321109b0816360511a21665b7d2f907d383763fb7c159b77b4968a7a7c478a75",
    "signature": "0xc5657bbdd940e204cccbcc700093a359a8c14640553b13d0b939532996ea134e020b24e3cf8880cf9069501ff788753737aeabe25ecb6c35bc000cf9b113d8981c",
    "signer": "0x05416cCb2565ed903310b8EC08Ed44f8a185DEA1",
    "userId": "122755642"
  }
}