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SELECT 
  1 
FROM 
  q_lock_keys 
WHERE 
  key_id = '5e10d93772321e2b7539d8df27f33fb9ae5fd9d23248f03954c9cc9d670ea24c' 
  AND token = 'Q5bM+poFsQC+q8Guk5nppaVFx6Wy0yAE0bljOpM03xY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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