{
  "manageEntity": {
    "action": "Update",
    "entityId": "289607807",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x0bab9035a7a00f9d0f01d406d7ea08de06fa2ae2a08e6dff590c283b52f8ba07",
    "signature": "0x021f3f773917b093d2b9f58de148265e62f83f35be858f2a2c51517b65fad71502a4dc53e962dd99bb0c74e7a53e04c0c19cb720dec71a0a30bdd6ab3b199a271c",
    "signer": "0x2bB185cE0b16566295Fbc66e79C0546D98CD75C3",
    "userId": "289607807"
  }
}