Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '60cf0030b073e4a4d97c49742baa2a025a55a1bad8ff65b7012a666a86fd0636' 
  AND token = 'c71xgmI6uDaNcs2TGENPGaKWxNRvIjmUsCmzwoPcM7E=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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