{
  "manageEntity": {
    "action": "Update",
    "entityId": "118123141",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xcca797733d4f1254a3b3bd374972416101c60da098cfda1ea75dd6a09eab8eb1",
    "signature": "0x35bb98bcf2a5dd1d4724f33be9875b19e327151b633c8314664ff758569dcafa6e38fd764bf5f0e7c798e9b9d5b72626badc01c7b0182c43e9cd5f9832cfac481c",
    "signer": "0x80F600fdBf6F40e78069849Be1C2b4f379F76adD",
    "userId": "118123141"
  }
}