Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '633ff5a70604b5efc7a7a3b2a2b898c8a771ca0bbc4ebeef5c6d8c2dbe7b8a5c' 
  AND token = '1FGW2j/rkSjuBhMMDUOUakTEGb/AqDCr2AQXCTuqWLA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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