{
  "manageEntity": {
    "action": "Repost",
    "entityId": "457681760",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x8b848d24e51f79edff4ab73398f5305fd7c63d7303ec62b7f00eb891153e24e7",
    "signature": "0x89267f06d6978062b007b14f5ecb8a81c192c041a95c6720602066390df71e1442df6ff36373cd9ada9655c9ce296e9b76e2bcd8557ca4019e65c44d46a13d131c",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}