{
  "manageEntity": {
    "action": "Save",
    "entityId": "1715627059",
    "entityType": "Track",
    "nonce": "0x064bccca90b710717d606f3aec7e019449fc8b6ffd1d0f40068aecd7e2669e59",
    "signature": "0xa8be46cb76ec8881171eafad2d7440ddb9a9ce95dbe1102500328f3f67aaa1fb4d73ea73db97d837d726ca2c5506a5eae4daddb93156555337bbe29d1df57f901c",
    "signer": "0x7425EdbFdF528603A88c658f4cf8B1396a8a77F5",
    "userId": "406225571"
  }
}