Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd957145746abf4d8d4478895acb67c1c84ff7d4a59000f11b1f1067fd0b27c39' 
  AND token = 'mi9S/MtTMWNi6dtrRetJMeESWLhdMfQvnU6FA3kB8L0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00050

JSON explain

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