{
  "manageEntity": {
    "action": "Repost",
    "entityId": "475021",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x140d7a30e076120f5e317ce1a79c42ca29c63d5ee1e236bbfb84fb6c200d7a07",
    "signature": "0x291c5234b3b03abbe8c325250ff37869a77d62a068771d7d8d1e3853bab2a5af7d891c4b5ed7d261393baca523fa5fa2cc6e82ff3c526827b6b2912e9a0bf8201c",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}