{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "983776406",
    "entityType": "User",
    "nonce": "0xf0e0fcb15863cb04760cf00196e80126598355a119e61a8bf049ce023d255197",
    "signature": "0x3a251d3d349ccc650313bf8c8c1cb86d6ec99d6d9d1342f9f62eb745d84a63ea3c7770a51f0131e98698e827b6ea83a38605a5d3617c6eeb749b18aadfbd58581c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}