{
  "manageEntity": {
    "action": "Update",
    "entityId": "336287663",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8a6b2acc8018e51705f79433496cd2b70c0dc5f315fe68d3025d9d2d4b73c60a",
    "signature": "0xab122b502d67d7b35281e2c352f22efe083453a33f939c8dd1df6361fb459ff17730a70cb3d2f4ce2470abef70c23bdd831be7cf6dcb2b662bde0a69a72550f11b",
    "signer": "0x626c330De1fE664a6a91eE616d9cd1859C3f2061",
    "userId": "336287663"
  }
}