{
  "manageEntity": {
    "action": "Save",
    "entityId": "2019079165",
    "entityType": "Track",
    "nonce": "0xebdaca1ed077445319732cfb59a8d2f5f807521841346211fd66988353c6ecae",
    "signature": "0x2a6fba170ea73ee23e5ad3d46d344cff89baa5a0716a29dce2c7a31b596dc92c20cc213c401d0d4670c927221163120bf7b0c9a236d8da97526843c398a9d44f1b",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}