{
  "manageEntity": {
    "action": "Save",
    "entityId": "65025527",
    "entityType": "Track",
    "nonce": "0xe959298de1fcc08a49355fcb5014a4dff69a286a55ec387c65d3edb9c06d5a84",
    "signature": "0xf1b60fb8eaf541e2ac6c0736f89e629d7f2aef9c1e46d4717bb350e12630ff3b0f1a8d06faf0f8043bdde4b780eeb60e1f4f661257cfdd94f1b99a40d3e9547f1b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}