Sandbox

SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = 'ab8b2f67a53a3443850a689e4c8df908e7a10add4896033ac314493468f9a49c' 
  AND token = 'N0pVoaPoC+BHTIofGXqedXmRvbKopwKdKCDwPfWRZJo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}