{
  "manageEntity": {
    "action": "Repost",
    "entityId": "621737",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x16513b8214d8f8aec518fac0f74acc576ba4242ef8fabbf3c1756c1b1c6a0b28",
    "signature": "0x660312cf56295588cef7c4478d842803776533ce1d4bd8e1566e27944a489ef21e84342741c65c50bc3ca7df9e2a4dbc27ac92c71bf343c6f79383fdd463e4ff1b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}