{
  "manageEntity": {
    "action": "Save",
    "entityId": "832495",
    "entityType": "Track",
    "nonce": "0x3d6f97e2ec13e6466c03e24bdd494c2307170b812a5ee6192d4278b49d21cf4a",
    "signature": "0x659656de1995806ae5420e2768325cb26fc862ba0f3045cf7a322f1fc3d98583514e45fa63300946a4733316698f32ca680620a8ce44eabb3262af99e53e31e51b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}