{
  "manageEntity": {
    "action": "Save",
    "entityId": "88015",
    "entityType": "Track",
    "nonce": "0x2b8429a68879ee390e95c5eea0f4efb2c7cf96c6a2c4d26e73d091ff2f5a3c35",
    "signature": "0xc2ad4e1a194dec954aa964fda1ff938df77d82d75948a8418ce39cfbab52c7127ee48a7266bd9cdef02a6749f793eca842e893c20646ce8b2beb52b4809d50201b",
    "signer": "0x65b2681094e762CAD2349e6C1e2FbC8d54b9c046",
    "userId": "11153747"
  }
}