{
  "manageEntity": {
    "action": "Repost",
    "entityId": "21420016",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x4b222bf7aecc7c6190e3263ddc68181841c1661c902276857f396075c5060808",
    "signature": "0xea00c9c8368e1befdb165c74f6eb0e1e1e575e0f50522206ab2eedfca24781a903141380b0ebdba8888f8305cb02dfd1b14751357f060078a69aedae04f45c8d1c",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}