{
  "manageEntity": {
    "action": "Repost",
    "entityId": "664537",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x788a6c3e983652fec137e66b6b433e4aa5c0823c16cc045f9a697430cf1af58b",
    "signature": "0xd72cac92970b0506ff4d32c8a7b90403a8cf73d8875242d0dec519f81b22d0994c99764beb3135f0a7f5566d423003d5602c1c32e4ebcd419f7e9bd0cba723eb1b",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}