{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "571117272",
    "entityType": "User",
    "nonce": "0xe3b643ac983d2a404ae2f3b788270391404d28f8256c9e940964090dc8034151",
    "signature": "0x90e41b19d69655c1d5732a36e22a6117aa944a55961d022903e0968ec6c3e2a07aa6670378dcf880b5136a8c7230ab5853f7fc1656f4fe53061928bcad556c041b",
    "signer": "0x71ee6650510BFB16b2B0954FE291a058544052AC",
    "userId": "30595601"
  }
}