Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '990ce054b8f8fb989a76ab5252e9ead1026a6316001070e37e2aa96cabc4751b' 
  AND token = '6HBWhuKGSG/sNP19pDBkj0OXcNCf123aSno3gh9X/gk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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