{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190321",
    "entityType": "User",
    "nonce": "0x6189f6f6a325c159ddadb76e843c81c3cdda5e04b07fad775983677285189126",
    "signature": "0x7c7fd95bd541040d510ce14ec3601c2fe846eb84fa346cee8525a7d58401be9d05be11900fb79ff065672f67f308222c6f1ee089ae3c1f4ad9ceb06f7ced6c681c",
    "signer": "0x05aba01c97C4F182D989670622abE9c797782dD2",
    "userId": "508263176"
  }
}