{
  "manageEntity": {
    "action": "Save",
    "entityId": "1481167316",
    "entityType": "Track",
    "nonce": "0x360a471ced8e9370ac2feef7fb5e2287c4f1d2276ad3093989e19d5dbb97c3cd",
    "signature": "0x62df6e8f47670b8ef6629030fb0868a8225abc9d86264e6b5e6267b4041d65cc7d33e1ed3b4d11b27db50c7b2036833f28115d1a36eaf07d9a78497a42432c901b",
    "signer": "0x1CE93c43F8574f553E8071e946654066188B61BC",
    "userId": "52309"
  }
}