Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1e680187e04cb801d7d3c56827e61fdfa2cb76d3d9d5cda2e804159cfbd28a98' 
  AND token = 'Vt5J8JjiisudaXr61eLc3ZcxblH3dHh3WXVucucKZLE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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