{
  "manageEntity": {
    "action": "Update",
    "entityId": "637284137",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x6f64206bf6fdd8f8d0ae59c73299dfe08e34bcc37c53ed9f74b566eb2d54dce4",
    "signature": "0x2f5037724a5093b46f90891c50684311a70bb9b55d1a7c85560874c3204656ce60cea6cf4529c3f12170b0a051f3a524ba49db564de601ea8c29f4cb3d84cbc71c",
    "signer": "0xe80840F82266A0Bfbea798e325eB9Ee52c5C78AF",
    "userId": "637284137"
  }
}