{
  "manageEntity": {
    "action": "Repost",
    "entityId": "753057649",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xb519b0d1de28b94036ed82d15cd26afed507b186b4c036ff96485065865e9d99",
    "signature": "0x3df48cb19a451b4fd6004a15654063b4b165547bde650b9bcc7fbad6ccf3dfa564cab4769e32af4509eb0d6819fc90ebe8b898a3d759055909a8354a4b973fdc1b",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}