{
  "manageEntity": {
    "action": "Update",
    "entityId": "522902911",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xdf5b00f2b4ef0ae0f7b849d3ab2e6e81af360b56a965d379d94ff141aa3821cb",
    "signature": "0x129a82bd037ed60d73a32aabad98cd0859f42231e41fdedcca79320335e906880ca4f97834cf50abddef2c3402f4e4215211d07042f1a4f1c9dfbf56193ec7081b",
    "signer": "0x064F47ceA1BD6c7f4E75eEaF6208Ca039d0c2D01",
    "userId": "522902911"
  }
}