{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "747594329",
    "entityType": "Track",
    "nonce": "0x17f911184da4f07516a48d3018105c3ce2eef6bba427135cdf1e26605ca4b671",
    "signature": "0xcf2797ae042d52d01d8100be7cf0efcbbc664811b6d0c6859e39427b4e7045f87e75bad02488dec864406286b32d2907b1312bc0a08fc985dfab58b4177cff1c1c",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}