Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e710b0ab1e277d4e3296489b2ec858e54b1d2c46f5978b6cd4c919767c0cc6f9' 
  AND token = 'LvTfQFRfsyHGe5dx05YKpOC73cKchu8F2BMCmDGX7Ms=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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