{
  "manageEntity": {
    "action": "Update",
    "entityId": "806015301",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3c0266781f0aea8aa4bc15bafe536447659bf941b2d35d0ed8b1427555994087",
    "signature": "0x8b3b451965067722c8f14e47d29624b0c238aaead983763431321d34436e306f0669a3b9e6607e89140284d48410e353aec857276de208cfd7a5536a02ea370f1c",
    "signer": "0xd34259D77c85379EE978514Be14547d9AB1f5F3E",
    "userId": "806015301"
  }
}