Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '32865eeb6eb16ad174e4da1551dab4d9fd9bd9a3a5b01552d3d8a07b7fc4e46e' 
  AND token = 'L2lFqBJ3e9HOA2y7LN4Z5xUa7EJTOrxecgX3ghawBrk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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