{
  "manageEntity": {
    "action": "Repost",
    "entityId": "664724",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xb3238e3a4856b4113532059f1e5077f1ce046faec64702495f6ec139131fb0a0",
    "signature": "0x445debee3b25606b87455b68c21ef60d1a615d69f50a7b5824d4583c0667bf117eb13ee6b23221a8466850238f3398615d4b0d08bff42a64e3531ee0a20c8c721c",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}