{
  "manageEntity": {
    "action": "Repost",
    "entityId": "510507019",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x958446f7ee59eb2b691527d4f3c07ff835ce5a3038c9ee1919f782a358a921bc",
    "signature": "0x9a5e93f5f6c6d86ab1848a7f50fb1797701b69eaea9d1fb6b0e586fa805604f173df22f679a4efedac611401ed30db2e4e184aaf3ec3104063e826e3e4ee5be11c",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}