{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "422886157",
    "entityType": "User",
    "nonce": "0x56d769061579426310c7eee69609018f5d9eedcae8b44414bca390a13afe541a",
    "signature": "0x964c5559f0d08c66afc967e218c336f051643004583662ff4446ad961e20a81901fb11c2c8cbfe37264e4331b8defd26274d3e8edd34ba49954593a6a916a07c1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}