{
  "manageEntity": {
    "action": "Repost",
    "entityId": "512978",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x7388227227a3d3a9d3dcfd923acfe4c505d302d57cbe2e84273bf89abd2bc08e",
    "signature": "0x95e28781bf28fa0bd38f1ad17ebc1561e4ea73362f036d9a154cbe004d53e34523b211594ce35bb53deba3fabb80843438482a643aaeda55f44d7c95d6d32fc51b",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}