{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "310089",
    "entityType": "User",
    "nonce": "0x1993151149e11364e02919862a0ade030020d75340cf081fe6fa10206e9c88a8",
    "signature": "0x63fe4b26b87a0ae25ffe93e190c54bd4ee6c7b28a2e3b9530fb8a194a60b8cd845c52bd054dfc09f8c84178015ce92aa52fb61bb849f07eb0fc444e372ddcef31c",
    "signer": "0x48ECe992edB7C739B36f37DDbE8Fe352996B5A56",
    "userId": "183063753"
  }
}