{
  "manageEntity": {
    "action": "Save",
    "entityId": "1051484382",
    "entityType": "Track",
    "nonce": "1792679260818778545",
    "signature": "0x29d8e7436a4d720c769f1a6756b7638dc680fb2cf9265c42223b674a4e339d82303d826b81d3d32cd386289bec0f48039bd865dde2e0d329ca8d3a74afac12f91b",
    "signer": "0x9B241b1a6A99d662AE67D328e091Fc94faF23fdc",
    "userId": "881446128"
  }
}