{
  "manageEntity": {
    "action": "Save",
    "entityId": "2010046232",
    "entityType": "Track",
    "nonce": "0xbb91357d7ee8bf904676f4af7b7bcfcd4d6d9efb4abaa96c31bd820bca89b435",
    "signature": "0x41fc2d3cb2f2ed874294dfc06f8e1a140757ffb301e44505217e7c6c5bf2b56c0dc9633f1e1a0264e95408145b56d7990064f7c3da65a97e0b53ee8334c53f621c",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}