Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0f8f2b20066060161a4ad4ac8b5a2514bd44e183dec0b0b6050aa3098031c5bc' 
  AND token = 'BRaG82MjZVHJjFirMnuPGlrf0R9E6q75GpS3tAoVp8Q=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

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