{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "433684039",
    "entityType": "User",
    "nonce": "0x650b1bb5ba1f1177d83883a2ff84b5174392a4a3e59fd6e770271e1e10214f0d",
    "signature": "0x3ae8ac4bcaf5c1e48ee9332092b68d72fd9812c46097101d27083fb8f768fb2e4fc237335ee51b85d4e64d55ed9bdee5f92dac1a30826b9bf7f01e63158d744b1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}