Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ece0e682f8c0ef510367fca2baed166dc29263524c42a7759eb4f26014087f4d' 
  AND token = '0XMAsP7c9QCboMuYic+d880Khmy9deTfySCDbyt+O+k=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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