Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ed428cf49605f5955c7ad3216d3825f868a7e991388e3439c39fcf5367b60b98' 
  AND token = 'SGOL8R4FF0GLSJs3Fu5R8XVJFjrhZ5/ForXVx1p2lR8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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