SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = 'f0519920bff034101770619e71443f612ccc9ff97ac0fd98b95280bee1e29368' 
  AND token = 'A39BrqKKvzot8Yd/+/a1lo16Mpm35QYv96/HXVgZYiA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00010

JSON explain

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