{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x684956080383aea28351dc0bb321c01f408d1be9a11d42434860e949eb580aed",
    "signature": "0x15e5f1bef3da34ffab27881b665a1ed1f15e9e74e9bcdffe9c0aaa24f26b59c874e34215c29530ac8ada0c17c77ce895684293d234e2da96fd249c4c71d1508d1b",
    "signer": "0x69163Aed5B32EC7f6C8a1e4aDEd7fD7E298F9521",
    "userId": "508931608"
  }
}