{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "192476",
    "entityType": "User",
    "nonce": "0x4bcec0468ccbc17c270394536ffd7bc32fba7d79f036b5ce0d1a1b1d414168ba",
    "signature": "0x77b7d5d157cc350895354ea9d438cd4e0348a6f1360c24dccd53773f3b5b9d6d3062c84d74b6ed03b461b18ccc91050a9dc73dd48c36ca793d3521d49923a52d1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}