Sandbox

SELECT 
  1 
FROM 
  q_lock_keys 
WHERE 
  key_id = '09b8083deb4fa664660634676a6162a1b487d8a49a48b59ba32527d6b9bade6b' 
  AND token = 'vpH7foo62xsyQ9aio7EPJTPUbzRZpq3JSo5AQEEd+5k=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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