{
  "manageEntity": {
    "action": "Repost",
    "entityId": "664537",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x493f027c22d45746c9d64bf24afd44fa185cf6919f1a4111f50bf5fdc7b34ad4",
    "signature": "0x9bbed1feaa7d78ff3999d56a9d87903bf896addc0a88f67e7cc0342cff488ce00d05f0bd27a0124d7f00bbc5748db1c6ed11d0016c0ff55734a9fd8d89f89f8a1b",
    "signer": "0x45C74e4f36E4e5064C5321eeED3748fD52B04eA8",
    "userId": "133970929"
  }
}