{
  "manageEntity": {
    "action": "Update",
    "entityId": "266958082",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb38dacac0a01dbfc17cfbf6f024148c6fbb05dde6c72ce22ce90704180bffb70",
    "signature": "0xde4c7f0cd5d3e846782bd18e12493c99bf9b90ce3b20ca3b8a86704f6b5cdfb25f596e765a1bebdf56a029e1dac1a7ef8e411bcf1d7331a5a19aeee97bb3951b1c",
    "signer": "0x003D52a670b490138D452ace63b8C15Fb6D5339c",
    "userId": "266958082"
  }
}