{
  "manageEntity": {
    "action": "Update",
    "entityId": "642941227",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x7437bda40bc637062ec3e848d023cb85e28a2548382ec30653cdef59b66414b3",
    "signature": "0x7164b98e8493acd242adf89a26c5d112bc83eb95199d16b6d3e460cd9698f5880bc2a167b1acbd4db65d3c531115ea827259b4a0a00dd7cc2603d00579b018ad1b",
    "signer": "0x4Ea6df868E978015fC5aF86878E595E9284D4155",
    "userId": "642941227"
  }
}