{
  "manageEntity": {
    "action": "Update",
    "entityId": "745940006",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5074444856c60c09ea5d9f5dc9664f87b4943a57ddb01ecfa601a5843568a721",
    "signature": "0xdcdfecf00eed8f7034ab4945017e5686f1822849e49515541711e468e0de66086c2a9b861733bae37259d6d3f23cc34060391a01886de0d83fb90e6918cbb2561b",
    "signer": "0xfd6fA08caFa73194F0ebBb3f60d6B15657185a30",
    "userId": "745940006"
  }
}