{
  "manageEntity": {
    "action": "Update",
    "entityId": "551647418",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9427b9b385d83eeeb7b6d88b0001899f26122ed9cb7eab4682087c2700854137",
    "signature": "0x0eaf612d0526dd299f06109ee238c768e73f59b616fa73f88d5bf3d70cceef882d1701fe9f6ab14782cdc7e944f84106ef5486704487c721e142bcf651ec8e591c",
    "signer": "0xBDDde19d5BE3a6Df0526390AD52e4ab9301d86Ca",
    "userId": "551647418"
  }
}