Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'edde94e5dd3fde76a47df2a45342b1de2d6702c8a37c3ed390aedd5ed0589caf' 
  AND token = '7eeRUdhCbY5gUHqIq+O4+QEEA4BmEyiWzcJKtf67EjQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00015

JSON explain

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