Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5926aa73ef2e1b3c6c7abda1f15033dec7e41ae096840c49ef8767a343f3532f' 
  AND token = 'orYt/Sbjp0d77i1ZcATavHPG/tZ5LONZht3equrUrQ8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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