Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'dac7a41a3f5c6ff8f5fe620cca79fe7e53a3587ac1069b50303def23a3095f23' 
  AND token = 'woC5xKJ4+98NosiH/6+AEfn1X2oebOqmfVEl6tdYcCM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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