{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "57280",
    "entityType": "User",
    "nonce": "0xe518618de527d63113c529aadc711636567c2bffd16af67446cb1c9dbc0e482e",
    "signature": "0xf4685a7fafb76543ed0560c6a60db4743e2ae98bdec857637b5a65c85648e28216df5f10b13f2e52715f96608fc7e29f5d8f321fa1c656d2e3b79b2d0c38d1c91b",
    "signer": "0xcc8164Efbbe4ed123B8689622b411c154496e66b",
    "userId": "60031"
  }
}