{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "547841",
    "entityType": "User",
    "nonce": "0xc602115b17419b3df16af4908ed7ea902bc408fa784fe224efb1111c9018048f",
    "signature": "0x6b5026cfb5ec2dc92f8aa422c8fd166f8fc05aefef19402ede8bc26ca53c23043aa56e2ddf0451779974a52a601efe9b0c71ec333868985299fd7092c18e9a411b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}