{
  "manageEntity": {
    "action": "Save",
    "entityId": "135056013",
    "entityType": "Track",
    "nonce": "0x327a730acb3d857d245a07e36c04344b749ed4d0f8480e7c0ce10d57fcc546dc",
    "signature": "0x49c4b2dda4269cb3063161eca607266cc40ebc6751b0188766c668d26491e60760db94fcb711c6cb820c22b1d26f0837df0b1feb232dccac900dee5d8ae113c01c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}