{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "339137",
    "entityType": "User",
    "nonce": "0x0642479898900cf428e150aa3738b049bd735fb7dad510bb9e0c5c96d2ed5aae",
    "signature": "0x965b32ad32f784a0e697913548d4a93f0265cef9948d57abe28196cb71bff75166955fea4bef6ec5184cc9ff210c4f76ccfa5642035b0bd9f4364813821f60311c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}