{
  "manageEntity": {
    "action": "Save",
    "entityId": "22262361",
    "entityType": "Track",
    "nonce": "0x557aa2e46d6f8c6ee1a348fc06034c223fbf722a26ebcb5d13c4e633536244b4",
    "signature": "0x16d34cb1639a409ddfbce0db6edb6785b3036940888e5eb777b6913d1a930f8000d8ea733a2d09457ee8eac37dcae793d8179323b4f2cc4631c8785e4e2c3e771b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}