{
  "manageEntity": {
    "action": "Repost",
    "entityId": "21741",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x4b301023c764c2fb8d64066afec90598e7c49905afd200e03e6c22851b027328",
    "signature": "0x1d56b9ec3a9cf063b82c8ec6ecc946eab1535b39a305000144c82bcc2e9d9f24700863a06a710a0cd97439b6193d3801cafa9bacaf91b8cedb50b6a34c64b66d1b",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}