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SELECT 
  1 
FROM 
  q_lock_keys 
WHERE 
  key_id = '00e205baf6afde701420a2f0570a6face998c1e1b40f421c57b2a789114ee1e2' 
  AND token = 'haO7wRrkkoSF0DUWtKMHsO0d8sy8T9oqxNbZ5qLTXSk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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