{
  "manageEntity": {
    "action": "Save",
    "entityId": "736586209",
    "entityType": "Track",
    "nonce": "0xbe6c9c6105e1ba3ad0583a5b00df3d4de88744373919411be4551ccfe06a4dad",
    "signature": "0xe50d54bd9dad43e69830fb0a4dcb4e77b56783753002a3e086c2acc3a6e221cb3eac9c5d985178faba77c40e7d9cd0776077432a2bdb30ba189e922d6b806f741c",
    "signer": "0x06F989586c5477333A41f6057f224Df79903862a",
    "userId": "24240642"
  }
}