{
  "manageEntity": {
    "action": "Update",
    "entityId": "271225731",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4a816f153374a9f606fd8451372dc62d82658f3a77be3a178da0e49c60fff923",
    "signature": "0xe1a309679d6093e6d7f1fda63ffcd0544569d0399c68faee57e1f4d7afb0f80f0975e2379002ced1e05480a442032a39f2d1f5523b88d6709de4dabe555dfcba1c",
    "signer": "0xd103093d439D7d4467a023125Bf27Cefae02041D",
    "userId": "271225731"
  }
}