{
  "manageEntity": {
    "action": "Save",
    "entityId": "1062071",
    "entityType": "Track",
    "nonce": "0x31db939c52f8d8af368b5d2fae068f9a011a82a8345638f2414792689247a0a8",
    "signature": "0x118b637e21ccf61d10c34fc401e5b841bfeb4d894320bb2275e8ed315c1aa6ec1db535b2fed17997e4487781803d609448d00757873fd28579cc2548c2a301101c",
    "signer": "0x01eB7915E4941D64a8ddf370bE06647ad5F79d4e",
    "userId": "911613164"
  }
}