{
  "manageEntity": {
    "action": "Repost",
    "entityId": "21420016",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x6c8b589b10e3f391fbe6534c7c60c1da4aa0775c65981d6b24b89c466cd1ea8d",
    "signature": "0x3a03e352504d416e624ced058e8cf153c79536fd214730b17f8f60746762bf9e4c4c3160ebea996fcac2c5f8a17e3757c3089827756a69008a600641935516e81b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}