{
  "manageEntity": {
    "action": "Update",
    "entityId": "939975613",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x35d6011929b33fc18930ba5bbcc9c5e0f1fc9d38d87ee105fd2f256f14806719",
    "signature": "0x3ed57e59dc26592036859de6020a645e20015c01e5aacf9a9592ef6372e7986f79c568e2be40837d54d6ed937fe8cac1447bd4569b9607bea9b4a0c1927d432e1b",
    "signer": "0x7e038aAe2C184078C863ce81f17BC252A897b06e",
    "userId": "939975613"
  }
}