{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50424",
    "entityType": "User",
    "nonce": "0xc189ef68051b75854a97a684b292c3d0ecba657f760389fc42cfefa06cf4e13f",
    "signature": "0xc5228317b582a5c07dbf0f4f0ff64ef9904ecf4d5ff03b0212606bfb553023573dfd65b2ec7262f50801f76e25091ded2c3fdd1ea262cb13b1c57fd7dde82a1b1b",
    "signer": "0xD2F2E85916598FFb221B3d399A164cD39bd24DD7",
    "userId": "132339661"
  }
}