{
  "manageEntity": {
    "action": "Repost",
    "entityId": "421345",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x1c64c35c0692a41bcc48150eb8fc2d2658e3068e98ebf72cb611795aea9af7b8",
    "signature": "0xaee51676f4859b85991b6cdb0111ba5f13ca80f64cc4ff22fe7c7c1ca6803e9e3b0ac9d6c57eef8fabd3a479bd18b117cfe439cd914d6be573827aa03a22092a1c",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}