{
  "manageEntity": {
    "action": "Save",
    "entityId": "295428",
    "entityType": "Track",
    "nonce": "0xe2fb60c9c70d43d3fac27cf4d0a97a4274c2115995be149f8529ff4fc2acca97",
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    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
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}