{
  "manageEntity": {
    "action": "Repost",
    "entityId": "21900",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xb5efcb9049f228d8490b3ec4fbb2f786a40636971aad72defa1e1420f8f94f0c",
    "signature": "0x10fd65cb4ff8cb30c5f9e748632764d1b9a9acdf2ff63633b2278075a504da010339348982dd1544e2ac0c43c0597babde6b32d0987513227822583c610ff8c81c",
    "signer": "0xE7D37531a757aEaf8B2c8037a79C03819edc20Dc",
    "userId": "870684573"
  }
}