{
  "manageEntity": {
    "action": "Repost",
    "entityId": "499218561",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x3a71b458e77757a90f42746b10a6d0f1c1e7675c79f6f2074cd8d0cc97c50e17",
    "signature": "0x4f851d658b28f1da5a42eb4e5aab6e02f73fdaf31ee54d8d3f1e0d01efdef7f2526133c73eb5028c872cd4b5512773dcbfca3ebf88210155500f034a1c1037071b",
    "signer": "0xa4A8a4853051b18e0f0f777693Ce34CF4bCe9385",
    "userId": "634886384"
  }
}