{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x10742167a61a36e1ca2fe5f95e40ad30486f448b75fb7b6d3fc4491c6f53d0b5",
    "signature": "0x840f65cd064147fae6adf91c5dad07eac336c67946f37852a6f6356a2a97de9010afbd2380ba8e6bb5a5a1969cc4afb4b471309e45f512a3d2912f5a73fbdd4e1b",
    "signer": "0x7a252808bd60a26fe5184c95eb104CfADdA8D4C1",
    "userId": "186415718"
  }
}