{
  "manageEntity": {
    "action": "Repost",
    "entityId": "721891",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x8d519a462c8d7e5ba458d0801beb25bd4deece38d8ac40c60ec501a0c3481336",
    "signature": "0xee61786abb951b5a07f26e2540c309af0c97bcb010218f292d0080d308fd389c714935756dcf9a639f8fb8352aaf40ec9a686a23a4ed2b627e4efaf11cbd599d1b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}