{
  "manageEntity": {
    "action": "Repost",
    "entityId": "521399381",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x5d5f0f11e8236f2d64780a1b7875847b497f56407c46ae352012dc75a19572be",
    "signature": "0xbdddb45939698db175100fb4fb173d3d32bbe70f06de6731853afd0638d537917a44563c3daa632b1384bd64554df7866ef82789fb83d879763a97b482ae3fc21b",
    "signer": "0x0217238d044Ea0f4Ead44CF916eBBac269F132bD",
    "userId": "386738"
  }
}