{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "971292289",
    "entityType": "User",
    "nonce": "0x27ea149db011e4e0c4bf393133fd553a108db8bcb645c5c599d737bdac5a39c1",
    "signature": "0xb978cc45da37aafe8b2e935eddbc27b5a246797f7678e1a5ec16075b81abd51c4433c197543bc4138110753f0a25c458c4cdcb103ae889fea99eecd38e439e871b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}