{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "100015",
    "entityType": "User",
    "nonce": "0x1e9816187c096bce12acb1c451698845389ae61ca8ff1370a5f11fcea03b099b",
    "signature": "0x952d8cec3683e5921a6bf8c5e130a87109d2d41aa7300ea0a12f5fe9f8ad0f3766868e00976bb7b36f01b4c65c695c1aac6df17b1ed7ee232c45024cf7ce70331b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}