{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "355315",
    "entityType": "User",
    "nonce": "0x8e58ae21399486955d3db44a768307ea8fb453a487bb707a3d0bf02f64b2ef56",
    "signature": "0x8b1402f16e6c05ae49536e2a2a9f46d87053abbae95b25494daceba7c8361f175e9d6dbb6aab6892abf960779c9c3dde1dfeee88fbd450465fcdd87e57fb9a9e1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}