Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'cd0cab8df69c3cfc20f1d9c9955012f895694b6411cdb99cafe1eb8b50041edb' 
  AND token = 'Oc4AEySIKaqJkhD53v0smCWTclXbM8f0NK12lCLuaVA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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