{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "33219",
    "entityType": "User",
    "nonce": "0x19f12d596a9fdbd099550e13638891777939aefc7d4db5a1a02faa44acd4b1d5",
    "signature": "0x4169904d81b34b33d7f3143dc7898bcfd1bd8b8cf14e513b55436657f5a123933b37e7e36c49fa3cd173974cf62e5e7d13932fb73323dccdb65d4d0ddab701b91c",
    "signer": "0x9BaE2e1849D39772019b4AC3468e938a232f73ee",
    "userId": "948584098"
  }
}