{
  "manageEntity": {
    "action": "Update",
    "entityId": "788370768",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x76416f2f65a707abb6789d461126821d4f11ad1fc326dfd945f4f6a293148124",
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    "signer": "0x86BFfB6d678187fc90264C94CEc5d39Ed9cfE077",
    "userId": "788370768"
  }
}