{
  "manageEntity": {
    "action": "Save",
    "entityId": "79363432",
    "entityType": "Track",
    "nonce": "0xbef022e807d04bd9ecfa1897071a0d8376cd82796afcf2c56c9f405fc0f8d2b4",
    "signature": "0x3bc582389fe91c4f05e55a30ea229bfa2e9e11608850abec4d8a19b4ce99fabc3855bd8b1fc5bebe854abd593f79fd85ef9724243485c2bf676244d92f926ef61c",
    "signer": "0x5D012C880480A2E1ab4345f6F374CFf73e040331",
    "userId": "10449019"
  }
}