{
  "manageEntity": {
    "action": "Repost",
    "entityId": "757103",
    "entityType": "Track",
    "nonce": "0x1c1d5cd680898133ef735b3a0fdf19c9147234fd48f7571f058c812d558fbb01",
    "signature": "0x3849381eb63d59fd9e8d62e543ddfa8c730762caa3ebb3cd05b309dc57abd3150026956854b0212b86d01dcdc4ea8c5434c5768a46902aaa2b6e019a5a2b40991c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}