Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '444bb1ca18309194479e364d050f2c3317bceabac0af0617a5488753fe26e2bc' 
  AND token = '0wapVAfBiZZroZHiXZo5wYB0CDUI4eQC2njIHB8QpQo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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