{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x05109b9d9ff8fbabb55a02e08925bb2d57ffd608dab9ec95296f06e3d6e09598",
    "signature": "0x7f178bff9299b56f69bb6c56caa01265a1082202a4e71bde123410049cbf7f9e108969ac9bc29ccf84f1f95647579fd5fc07e5ce195aa18dd6a165d8cb0925651b",
    "signer": "0x522a98f96959C999B8eb159470FC31A1dD538194",
    "userId": "968735219"
  }
}