{
  "manageEntity": {
    "action": "Update",
    "entityId": "944117628",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd399558bafb0bb1e8f12d7c1dfabcab647fd66d5540836031063d5fa2d7f69be",
    "signature": "0x9be9682ad8bfaf110575acbcc78b360ac921a1e0316dd4da220b4ca4066bf7ec1b26f950b174e211af72f348d03b353aa1b89a01b6604be18e6adf821402dca11c",
    "signer": "0xBe9B6f5cb472cCcDCEFf1f823a3Ec32D93CcF9C1",
    "userId": "944117628"
  }
}