{
  "manageEntity": {
    "action": "Update",
    "entityId": "696978255",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf4f163bcc96417f04008409fcd7101fc7c2bc0bd1ec43940d46974255939c9c2",
    "signature": "0x57dcf9d25df85570fe0d913ba7137c86eba156cf482e37afa2ddefb52bddd5f248372c0f5bb9c950ed0c771147040bfc1594110d78dc0f06c2724c5d716a09ea1c",
    "signer": "0x60495664C60cF8427e991465f31ABe2F9dC345A5",
    "userId": "696978255"
  }
}