{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28851",
    "entityType": "User",
    "nonce": "0x2a921baf950eb38802c7cfcffe941610d7fb76a8044b22af378734df6dedc010",
    "signature": "0xdc43c07710e81adafb7581e91d3e545334808d895a48235cda9493ec1acd0ba27658199f371e09e293c49aaeaf8244de2f88be825ee86a77bd384bba0f7c44071b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}