{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0x3b5cd5fa3e7fce2e3ac41c7ab1535fa9ada65d12e504f2af9bd311ae2203e054",
    "signature": "0x4a8cb40ea180168b65694cd5a23a266b0e85c449516a9810f5861a262542c4103ef2ce04f9287d9d4856d5d56240b393096e06aaae5c747769c7174ab2d941d31c",
    "signer": "0x7C58EC2581dEAbE56a54AD15Aa8c648De695636d",
    "userId": "114524"
  }
}