Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '43f72d54ccb8be67f1a16eb4886f54ed6a0451914b8434f04c9fb330c177689a' 
  AND token = 'BWXJM6BOSe449SNf2XXEdpZRw9BhGpRqVaowZ5z8aK0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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