{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44142994",
    "entityType": "User",
    "nonce": "0x75c9bc455adb84dda8e9e39d76b607be62b629670615808a7f83275a8ef22eee",
    "signature": "0x95d07c4b75caabd046eb9dcfa5afd297ecb5077800b3b6a72b51afd24178349c55d68807a5dbeaea5cf4dae13a6461882ebbe3ed6a8288606bf3a362a86423ec1b",
    "signer": "0xa738EEE0069867D724b136d8DFc260e3f505EDad",
    "userId": "337739637"
  }
}