{
  "manageEntity": {
    "action": "Save",
    "entityId": "1067744",
    "entityType": "Track",
    "nonce": "0x1051653aec26839ed5b035901c1c56e73fc4ba1843cfc55d87033bf5ca505336",
    "signature": "0xc82b240e253fd9b6d3900231e5716698aec3b85d42e37d4af9f94eecde25931b55a291ab033a60e3d3afa77d23b44ea98817de530d15c986de2220da5480e96b1b",
    "signer": "0x06F989586c5477333A41f6057f224Df79903862a",
    "userId": "24240642"
  }
}