{
  "manageEntity": {
    "action": "Repost",
    "entityId": "1489721261",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x469eaa7dc9b7d3ad7646509a0c6a135cf6a2d8241f0fba7d07002d6a4e6b8224",
    "signature": "0x60ad11b79fe16bd791735175de3c59ef9ceadcbf28da55e232998fd38aa1686667f7cf6596d5c56be8d47b0099ab4bdcc8ac80bb37779c713010ba2083fdb7251c",
    "signer": "0x1d868e2cc29848871636BdCF83a08A975835b6DD",
    "userId": "120328011"
  }
}