{
  "manageEntity": {
    "action": "Repost",
    "entityId": "600618",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xa79f4abd521f313c6d1ffcc84a1e91adf59d7f3197a49f78be54852d5940ce67",
    "signature": "0x6d48daba96a908490a65bfd27c8a16a6c61a30a3960eeb1dcc7323a04b4f636450a4117b31f43e2423927bdcaad7564b6fbc03834ba677f8fcd69d02a81384da1c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}