{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6d135ac48e7eceefb0755c9eca6d3729606adf4b848ade964f7e894ed411f9b8",
    "signature": "0x9db2055966ea3869c0cb71e915bb345c73c23c3c814c8beaa91c6179f806e0254e00c77f6cd3e2a77451938661574d11a43d9305310de216749681591088525d1c",
    "signer": "0x6c85548A20F07181fe5Baa6DA1FDDEC808971362",
    "userId": "190983722"
  }
}