{
  "manageEntity": {
    "action": "Save",
    "entityId": "925626233",
    "entityType": "Track",
    "nonce": "0x2b6a179bbab039f67049142e7e8592bab11d62c3f395b99055f525e3572a928c",
    "signature": "0x77e207d6893e97333fa32940056adda824527433fe088ecc0dcb28838c1afd10334d2c384d45da3c9c763488649e69d3bf3aa16dc81a2a261a1f1dde84bb429e1c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}