{
  "manageEntity": {
    "action": "Save",
    "entityId": "1710073027",
    "entityType": "Track",
    "nonce": "0x9f007f96cdd1be43847d400d2877b82e8b09703eaa6b0caab53dcff8dee62794",
    "signature": "0x1593823200f44a497b76eec90eaa9a0dfee4a79f99146d0b2b8fce393e613f1e3fbbee25bbe17935c4c9fa01bdce9e46059401a5926fb2fac66a4c330aaf99121c",
    "signer": "0xc1C84e5C06F7dc5824672906AC6E51CDfeb90aeA",
    "userId": "447798047"
  }
}