{
  "manageEntity": {
    "action": "Save",
    "entityId": "526565",
    "entityType": "Track",
    "nonce": "0xc54c23375da469279ee622c30d931262b8c89503f1fbd427a4f3b0b8280625f1",
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    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
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}