{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "143858",
    "entityType": "User",
    "nonce": "0x7e702fc921e684addef5f9b3c6a943cf5f9cabc13a4df778852549b44a0c4fbd",
    "signature": "0x0f2bac3f7856f856836db0a85610d648da5b79331847a428f6fb38696e6687ec7346e4ac06e85a129bae227c73134b113d5ef886179a44ed315ad15ec3c1d9651b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}