{
  "manageEntity": {
    "action": "Save",
    "entityId": "92645",
    "entityType": "Track",
    "nonce": "0x3b7fc67d85efd026c95bdb5c35ef061d41e9550cf3ef8eb13988b47dee5b3fb2",
    "signature": "0xe53897be1a12b090ef2abde32d98f1a507bbed8bbcc905b62b879bee5aadbc40521aeb5e22055b46b05194b6b7da181f157708dd7197e6701433a243586de1d51c",
    "signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
    "userId": "35251"
  }
}