{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "107971",
    "entityType": "User",
    "nonce": "0x853f243df1d054254427aea14286b9d271ef0357ba21e6b40ef0c6cd53be420e",
    "signature": "0x807bf71f48695c684c68e0be8c72c1a9a4996de72593beb4c951a5f8ab1ec5c072518b21461cd1abc5b295cd29e4c22140065cfeca03ac4da6d19539d6ea874c1b",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}