{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4e72200773caeca8e95dae05d96e5c3a6136b093c9596a6c83393387d05878dc",
    "signature": "0xb5697545165009f6778249caca66f153ef07f2dbe9bf438f3781c7f033ec2c7636cff73e9fe8f49be163891406eb1ec1d3a3bc05f3bbb068e18fe573340e851d1c",
    "signer": "0xE6BB6fC757B7D8eFBAE746947A1609a52457137d",
    "userId": "477180887"
  }
}