{
  "manageEntity": {
    "action": "Repost",
    "entityId": "538944675",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xb648fb9c84e778c32b259f3b36ad10cdc343dbb99a3b38dad5593968a9757d9c",
    "signature": "0x3f221cc81adbf2fc4b0828478ea445dbaf620696cdaf73bcd45c695e351a3a3e636b056fd61557f719ea0efa5af4e1110fe5567ebc6dd69c413a7dee58d182791b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}