{
  "manageEntity": {
    "action": "Update",
    "entityId": "565332983",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x44b0a5e991d81919468753f2d6c2cc72491c3a7309745deb996e89cda1ed0bac",
    "signature": "0xa4d53e074be00b1643fab7352c00e2307d4285c07f306b82854f294cecd83bc4653163d0df72afeae39dbe539ea4250fcd7884ce7a0bb7dcf02e4c6b672b11b61c",
    "signer": "0x70F676768959be648C55d1E2551E02F36a6c97f8",
    "userId": "565332983"
  }
}