Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0f1051ec11b462d82c3ec3d96b3d6154dc5f976d868f7f77b77cf9c3556bbca3' 
  AND token = '1hC6CI/5IZzGpxViRDo6kC1hevn9oSj84KQplOy3EF0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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