{
  "manageEntity": {
    "action": "Update",
    "entityId": "452108975",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera2bip34j3haxwb2gaijqvt4rui4wyhxbzq46fqk37vqv6gu4gpwsq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":875662475}]}}}",
    "nonce": "0x220b7c5f224820551cdc936c8faa437167282ff8e47fcb41b1a67c4f0e0d1bfe",
    "signature": "0x9d36d05c8adcd2db5cfa8b81216540eb46aa0e2e30b6adf9b5c78e08bb9509774ed8f834af9b86c8ebc1690126b4e07813d3ad2c30d7ffa4aacc4c9ba6d8dcf61b",
    "signer": "0x1Ffe2D421cF901dE6a191F85092964B85B3Ce4d0",
    "userId": "452108975"
  }
}