{
  "manageEntity": {
    "action": "Update",
    "entityId": "778114308",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xdec39b785764d67c3bc4dbaa82500c4041316c2309af33244067de54556ca06b",
    "signature": "0xa5cc03a675da9f16ab39fe50711cdd2097b38d447597b24f459fc697954ee5d816131b5b0e384725c9d82c75da8bf4b5872786f5fa2cc8a5104d336c286e66201c",
    "signer": "0xCd8044d3d425f124B0F430AF6fdE6671FEb03D54",
    "userId": "778114308"
  }
}