{
  "manageEntity": {
    "action": "Repost",
    "entityId": "578871853",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x7615388ff18f6135823f6cc65ffff0dd14389da0935c40f1177cc43ec6a3e02d",
    "signature": "0xd8544500aa9741d4dbd48bf15af42b837df40c6c796f910791ee8a50afe75a166ccca76255d5ba4746bd50567890fb4e451429d2d5487b0f0be0b19906d88bb41c",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}