PATCH /api/supplies//demands/multi/attach

Assigning demands 12 and 34 to supply 456

Sample Request
curl -X PATCH
  https://api.cedato.com/api/supplies/456/demands/multi/attach
  -H 'accept: application/json'
  -H 'api-version: 1'
  -H 'authorization: Bearer '
  -H 'content-type: application/x-www-form-urlencoded'
 
0[vastId]=12&0[cpm]=2&1[vastId]=34&1[cpm]=4