Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a62fac26b3a98a86bb206cc9783889a26061042a30dabf2e8e115772f8f95892' 
  AND token = 'Ra13XO66PPdgJYA6d8o8u2L0RoWoPvgOR48IhDIPH54=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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