{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "381478870",
    "entityType": "User",
    "nonce": "0x84ba8c56e370819bb1d2a19f73a5354d2a132eb04f7f0025968e1e4c2e897a2e",
    "signature": "0xe3610647457ae88bd7fc0d062016b59b3ebb7f6fd83a357357395a3301f16b9a5e75534c23f6fa16e7e7e6f6d1c99d0f97cfaaf2ad28d7d95cefeebcfa79d2fb1b",
    "signer": "0x6Af6D40d1d0B48D79D2bd3E3c8f0a45540130c0F",
    "userId": "89433"
  }
}