Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '00ce2fc40c6b6ef7244da8880022b07ceb15ef1311c15de2f32f82c5f57ef6dd' 
  AND token = 'GvDdWIakWVUmiVv94tiJyXE0TnuU/STQa3vdjMiaUPY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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