Sandbox

SELECT 
  1 
FROM 
  q_lock_keys 
WHERE 
  key_id = '1e3e815f09fd3419f97497561e6814ba7fc5a4f60c4346d81ed819269d63f0e3' 
  AND token = 'd2Wrlm7naMFHq28pThD88dWW6uMPM4BOEmg4H/JZ6ok=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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