{
  "manageEntity": {
    "action": "Update",
    "entityId": "875856435",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x62584877dd3202ab97b7b97e93aa21479796e29c56b7eb4ceebec350752b62ea",
    "signature": "0x5c444d78fd6b1b23bfce3ff2687a0cb80aa4e1e33ac266888799b2667e5c4f08750c208f7a88280e79099378da340b303da0ed54406912c53ffbeca24bda5d2b1c",
    "signer": "0x7662cb86A5Ab2f46DF58d87368873d0f07FbC1Ca",
    "userId": "875856435"
  }
}