{
  "manageEntity": {
    "action": "Save",
    "entityId": "1705355082",
    "entityType": "Track",
    "nonce": "0x2078aa44063be2992c26194bd0c799374e0b7f717782a003741632c7abd333b9",
    "signature": "0x08ac6b70a12ad851e824348ffa4345e4156a29d877109a0bfe92cf9ef9712b5875b09c549e55d34c33e960c27a49937d5546ad111da1272db4ccb15b27e821731c",
    "signer": "0x102a924C1c076Dcb5816d20E32Dcb6F00e75F2C9",
    "userId": "485987672"
  }
}