{
  "manageEntity": {
    "action": "Update",
    "entityId": "419795889",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x52a21f59bd35d65ca2973917d9ccb1a90354a3ed9418025e0ed02c557abc3d4d",
    "signature": "0x51888ac2ea2e7f2e70cdbbb9662134274ba020d3586788701c2be4adba2b1b8b5b16aee3579f2923363ac18d15dbb30fdf0766e4a7c9fdec3eb244d08dc467bd1c",
    "signer": "0xbF01d3816a6F4764Da6dF0CeFC8C48EEFdABB333",
    "userId": "419795889"
  }
}