{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "463524416",
    "entityType": "User",
    "nonce": "0xae818e308a43dbd4ae6060471b4a9bf118972061eb12bc4d08de0cf7b8b4378c",
    "signature": "0x9e0e37b84b344d8fcea8a1eaca9f5fc33530876e917c2f51e8aed0e30b26833869b1caf0e05a755adf961d8cbfc7c21d53b577d4a16911c7e0d397946fe755101b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}