{
  "manageEntity": {
    "action": "Update",
    "entityId": "785674160",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x549d1d363c1b35541a7bee74f91a7ac01a3802286d3d501422e6ade331074d0c",
    "signature": "0xd8468940eb2332df4276fa467c7b4974d62ed87183edc0a2f0faec306baedbb377685ed66315d1d6897e9fa79be1a601c5e4cbe3c4969b49d6dd3cbd4e97c8251b",
    "signer": "0x3e2f371b51fe149Cc5CFD660DaDec117C9818376",
    "userId": "785674160"
  }
}