{
  "manageEntity": {
    "action": "Update",
    "entityId": "628703760",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa8aba1b87f3e6487b123002189a9284d024fcc572487791f5c1898f9776e7198",
    "signature": "0x98ef39698bd119838744d8e3e95129f18a57f177d4fc19220bea1147ce1c70cb7c1a699f03a832a768566f46a1809c3682f70dda7142f98a8eab1f162cbeab381b",
    "signer": "0xa89657c6AbE718D0b84Fa7344A52C9De3FBD63c7",
    "userId": "628703760"
  }
}