{
  "manageEntity": {
    "action": "Repost",
    "entityId": "448978300",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x4770243897538430ae7b4b63977c24f09df5d5e8c6347619bdcf77ad745dcf34",
    "signature": "0xeeb3ca98106b6a6179bece349d348ad3314a6e35ce1940308a132fe387580928346a618ee7361b1be727ebca79f3fb8036923097be277308a6706c2150472e421c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}