Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '88ab3eb25edc9eba588345965622a0197acb866c5194760843c0d340a26a270c' 
  AND token = 'Vz6PmtBe0dQtc+pPxL6jzDbaG6Rl4jEUXEp1nzpapbc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00039

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}