{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0xd9e256cde3c9233adcf10a66dae53d0e35dc31c633f75dcc2629aa3e0c8e9117",
    "signature": "0x42b3fe53c82cd596c4bd3c09573f0ad748ea526a1fa5bac82e3a63dbad4d89780fb75d41b787abb7598d468702938288ddb402970be381d4fc3413787cc961481c",
    "signer": "0x7ceA71B4A8C4013A4f57c1A57eC0430915572e86",
    "userId": "31724295"
  }
}