{
  "manageEntity": {
    "action": "Update",
    "entityId": "150691657",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd0dae3e51b62ae3dfba037182ea7ab947773a5a2761e0eab65cf81a29d7ffa4e",
    "signature": "0x0ec9069274678e7bcdd55d3d53bc703c7534d59a6859aa42bcc9c11bef40229e4e292634485301faf8f69fc01af0b303e4169eebb3f3b34020034936c94faaea1b",
    "signer": "0x6645b243b3B96cb2424A3884578895b92B97f5BC",
    "userId": "150691657"
  }
}