{
  "manageEntity": {
    "action": "Repost",
    "entityId": "621511",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x2164cf360462ea2e176cd8e4bcc6adf6ce3793932d010224267969afef90ed45",
    "signature": "0x7306ef4c79ded64bdbcc20926580298e3e3bf6afd0f3042eaef0ccec5b0e14546e39ed5fd6299715756131874bf66674c5cdc43c3bf3e6bb89f0e22a734309081c",
    "signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
    "userId": "35251"
  }
}