{
  "manageEntity": {
    "action": "Save",
    "entityId": "1022965932",
    "entityType": "Track",
    "nonce": "0xbe5aca7021048f509850f8031fd2fd773c06f4125b0e009c9280a458be6c0bce",
    "signature": "0x31966400577eb87646d2da5371baa815055c0479620a97614063dd804be302af7c2523c9ca544469882b1781122e08063150c07a243644bfe7beddc31711b46a1b",
    "signer": "0x9369ae91F6A1cC4996D9126FD991d64e7E24c805",
    "userId": "333763354"
  }
}