Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1a4796b70140e2679f14b712f993d415581c305b7a6ef127ce335036c278d4e0' 
  AND token = 'vFBUdrRHrV8BP84FLtYNwXthcDGT4omsbCV1Vc2F+Ak=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00054

JSON explain

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