{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7499",
    "entityType": "User",
    "nonce": "0x07f6c979a571ed2ccb283cbc67b8a35e3e344fd23b832310e215b665f1d3142e",
    "signature": "0xd57f2f6288e18a06e2fb95a3b4b826c04b300a12f10b7bfc9b74c558325dd25205460b6203aaa8ade503c44e730e73112e4fa0895ca28764d64dd6dae00775201c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}