{
  "manageEntity": {
    "action": "Update",
    "entityId": "808443903",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x157c67370009a1948653c3a6922fc39ff0cee6b0f654b43516efe9c7db2b1eb2",
    "signature": "0xdd6f1a9e6e49d71080974c93358b128d60bb852d6e12246406eb9c4d77fe93e20435d695651eeb9ff3227ab23eab3c96e7bcf09ca986cc9a6f217078e3a401081c",
    "signer": "0xE7D2d2e0d0DdAa60c6A016b7271C1F9E865F5F74",
    "userId": "808443903"
  }
}