{
  "manageEntity": {
    "action": "Repost",
    "entityId": "721891",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xcf05c53e0ecfe15a07fd838a884f32b02eb116cfd4fd7a93354885b8b29827d9",
    "signature": "0xd3c7d4cec65beb557d564579e0af65ab91d354917d535cb58803815f5e4429fc5d752fbe076fccd85203751c181373c924095773b02139912bcd298d3d4db4191b",
    "signer": "0xA27B00F57fC7B3E81c4d7C4919aCec97E1fCf667",
    "userId": "329513359"
  }
}