{
  "manageEntity": {
    "action": "Update",
    "entityId": "380866599",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd8977ba0f909952864bc4948f02ccc6316cfbf976edb29486088bba4b9deedc5",
    "signature": "0x81ce9de88d99de839a5d898b966b941c029d4b3d6283cc81a28be5302627d4515448f85b62703ef324ceec65e4194c8d8e4a5b1407d9b3065012b03509bb4eb71b",
    "signer": "0x6a1Eb4ec32E13e7Fb8de38d1aD02e5f2d35CF42d",
    "userId": "380866599"
  }
}