{
  "manageEntity": {
    "action": "Update",
    "entityId": "686744394",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x0671736b0a27691949603e7e037063cb9fcb1bf1d9a45d09062ad7c84afb5b48",
    "signature": "0x88aaf464151e75047f036f25e553ff95181ccaa67770171b121ea56b0a661c3d3a17a6107e0ed7acff1193794258a9bdf4ebc39c25e192a62e4952fe9cc8d7b71c",
    "signer": "0x7cf8A1d269e7A3Ee5e3247a0A2662C0f4c77cB59",
    "userId": "686744394"
  }
}