{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "289729230",
    "entityType": "User",
    "nonce": "0xb117c92f815be1b97c81643124840a7446fefc2acaf3adb710ff10b95ac00075",
    "signature": "0x0136c5dfaef10865139d273b404b3abc897a7a9b47237ff8e5dfed9438e4f6dd796349489b900bb7f568cd95161aa54ab2bf8c28f84dd67fd323ef7655ed67d41b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}