{
  "manageEntity": {
    "action": "Repost",
    "entityId": "578917600",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x4d763ec7ad3222c48abf56ef8fcec5a2067fa31f18ac72d44674b5910c2a04a7",
    "signature": "0x7798a5018cd4d4597ba3342e7a426cfc6903674e7974004bcd1b043dd0ccf3245ee5a91d5d5497519e5ada81fcda5e47ea4c0865752e35df580097bbecfa86c21b",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}