{
  "manageEntity": {
    "action": "Repost",
    "entityId": "391333045",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xb9da49c40c3605eb21d4ad9f8f6bc7f0a24d768187d794675485c01b00390cf8",
    "signature": "0xb9e850a16121a8ce934822fdf2b4d516163cf6a9cf6f5d46944e922294a8b9bf0b5655015a940618b5212b6182649a657461efd4bbe1f859b1d35bc2c2aa27261b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}