{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "823446",
    "entityType": "User",
    "nonce": "0x1382137b76e36c2c1d27288052479b87a011684666d063d1c6bfed73471be1d3",
    "signature": "0x39951134228b1cd689895fc3fee49f8f894fe3e312e25c2593862d0e45643c735c17b8ca3e7b36a77b88b82ffc17d5422cacd28648b69b5fe8f0197e0c49f2611b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}