{
  "manageEntity": {
    "action": "Save",
    "entityId": "1116900568",
    "entityType": "Track",
    "nonce": "0x37b9ffd88158aa662536019bc45cfb59e42796271416f179a749e15db6c94cef",
    "signature": "0x9b8ac4b0fcd97ad66ee4cbc6ed829c535b712a0835d05efbd922108193e427dc59e48f6ab46110c9467f3d044928e7e7c6ee8d7ea6e3c7f243da60f172bd6bfa1c",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}