{
  "manageEntity": {
    "action": "Repost",
    "entityId": "607412494",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x637912a8741b0f3ddea1a57a33ec94cb6ba62b6bb61f5e4cdd7fa0f7053715fb",
    "signature": "0xe153ce69002d966bc4689af986ca66d034928c92b02465f38af1db15e01a503968fc62dd1e3a301d9ac1c2077dccf961a150f393b72da51052d93f8a5c5e6e741b",
    "signer": "0x4D8EDeF47b57f98c89BDFf851267B0327BE4cD05",
    "userId": "5307724"
  }
}