{
  "manageEntity": {
    "action": "Update",
    "entityId": "260942771",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x04180246af7f63279529972c0cb5fef7e31060c9b9f8a3322689b917474791d4",
    "signature": "0x0535632a1a11b0b73ee5f7d79c3f7e9cc5dbcb55440b432f2260b0e1b8b4f7af335d340c400385e1334a9be33f2e2b80c02430efd4da418335f3df23b1d014791c",
    "signer": "0x8Ece451d150139b6066e32CEb26DaE4076da0293",
    "userId": "260942771"
  }
}