{
  "manageEntity": {
    "action": "Save",
    "entityId": "1754191248",
    "entityType": "Track",
    "nonce": "0x093c4aae4ca26a92aee7b1454fa706b607800f7382ebc68d72d94b5fac5f8039",
    "signature": "0x58664fb1161e6be31dfb22c8fc02ef6d46ccf30c04b970e9609743e031db41d77095691580009476cf0e31ba7d5cc9e0308541f943ddea1a688a8017ecb3f26b1c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}