{
  "manageEntity": {
    "action": "Repost",
    "entityId": "451598087",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x4f8c2f4ca807017f0c7507074b6de038fe88f55cd2c9cb8cf80c6d91ad80d5ea",
    "signature": "0xddf05afb2e16b120c533bbe334bd8acdf26e19b5ef0971d7b5e0c3cf50be544067710ae42284e650f9df18955fe5efcfeccd7b04cabf3c187b9e018febd96e181b",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}