{
  "manageEntity": {
    "action": "Update",
    "entityId": "822131996",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xefd69e308db260a77d24bb3106bd871379a2fdb44564979d14bc3e1a2b94c006",
    "signature": "0xa963dee82bd4505d192cf7a7dd93328f4fea230e758e5e984d8b831f33c7e3a43ea777d8fea400cbddbe8027d3ff3d6fec28e7863fd036a511d18c3c74870e001c",
    "signer": "0x312eb8BC6BbB06B38DeD4B2Fa642C01E3651E7e8",
    "userId": "822131996"
  }
}