{
  "manageEntity": {
    "action": "Repost",
    "entityId": "1521770840",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x09def3103acc85ebff976074222b9f01eecc9c6872f9e50b53376149821cc477",
    "signature": "0x656e5de01cf0694a233bb23306928715e75e7d8d6a7898d1807a7f9d2cd17399385da435d13d6d592e5c695ca134d41b3b8b1d5bfcc91f0d3cc578186174aee71c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}