{
  "manageEntity": {
    "action": "Save",
    "entityId": "111359",
    "entityType": "Track",
    "nonce": "0x045259cb1b23027886ea4483583b741f074bf44c1f129ea759be87144ba34c25",
    "signature": "0xd69384eede7e85d6e981603139235495d69c015fb43203ac0560d7cab7d76740569de0595ba1ca04b3026bc10352e4a305d34448a48695e2d9b5cd03e4222c3a1c",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}