Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ee39616bc14f6b92acf35af32ae8e8d337d130d1e7a363cd1f49527ff404133e' 
  AND token = 'StOgHVuChjebmsb6KKFM8dG8PcIT16xTyYylqvo/cyY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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