{
  "manageEntity": {
    "action": "Update",
    "entityId": "743586689",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x82462d184b5a942b0ff433953ca79fdc4957acd3e9ac9f032df8b7a3fd8b5c76",
    "signature": "0x13707776086cfba1e255fb39890967e0e002377e233bd56e00dffa7192b590ae46f5dba2625d5fc8bd1a34966bf12a4839150b2b0bf32b169a231aca95da18c11c",
    "signer": "0x2a636a7c05b8985733Eb0B0cdF93b346069F901F",
    "userId": "743586689"
  }
}