{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "72538",
    "entityType": "User",
    "nonce": "0x730979c12aa0607cccbaa8ddca01f17145955c7093e8324ccaa54f70eef808e1",
    "signature": "0x0317d726cb6cdfbc9c7053d1a48286ba93e8f9a53944e1f4bbeb41aac8cf16db07141a105db614699af7354eb0e9d01e00fae0f54dd5d7067663c4a5573745bb1b",
    "signer": "0x8ce8B4fd5ED050E67C0aac70eAB0a188FD71eeC2",
    "userId": "757523374"
  }
}