{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "152605886",
    "entityType": "User",
    "nonce": "0x59448ca6e55e0621c04a28a4000ba3c7fb2d5a82d35caf696da5353b7503a504",
    "signature": "0xfa004984be69929ba65a8b260368c72847438606a4701bbb389eff9bae16572f16bc48ba44b35e959a3e273c9adc0469fc0e7251c2b4a9028791b6e6768238821b",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}