{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1e199cc19a2ca124b18e488721456926da0a7540b3d36c9c496bd2210a1e8258",
    "signature": "0x713392c1e98b9be333958930b4dba15e35781fbfdd60f63cf8f656952355b9380babd17b5af734459e2544d7e188e1dd460da29bac8481b995a057af814645461c",
    "signer": "0xefF7C914e8cb6F6d98EB6DD97a36437CcD58E5c5",
    "userId": "797035469"
  }
}