Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c14c74a26642dd9f2c3cec65f2ab7c96de98a36298cccd962a3f07cf6e891c59' 
  AND token = '+HyTFGXqjS+zF4eXRgsBWD8EtEvXHDKuxytPrgGTV6s=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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