{
  "manageEntity": {
    "action": "Repost",
    "entityId": "1421754021",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x257285c6f400e42be26f2aeb85e748ac3908f6bf2f3c7e291c38de6368c93459",
    "signature": "0xded60270bd8623c8492b96cef2f9818dd7b3b4340f9b7793e0ddaeaac2118c604c9d70cbf43a4dc9f35cf54a93575621921ddbea4cc600902be56741861034051c",
    "signer": "0xb6B208a8f79b1D88d245afa5aDB0a40d38cd6DD1",
    "userId": "528688046"
  }
}