{
  "manageEntity": {
    "action": "Create",
    "entityId": "422300013",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"user_id\":181,\"entity_id\":66378637,\"body\":\"AYOOOO\",\"comment_id\":422300013,\"track_timestamp_s\":216,\"mentions\":[]}}",
    "nonce": "0xb04dc7444eed25dc4b401b4249102e8032e38151ba22a60551d492855894ef5f",
    "signature": "0x4da76a1499703dea6409649235e122e2ed163fba754d4caad8a6d687bc665bff2325f4cabb385fd5383a78703377f7c9995a138e79ec51a75e319bb34dc106c71b",
    "signer": "0x4e636627B2C38e64C8D3aF5889767393B4fE6C1A",
    "userId": "181"
  }
}