{
  "manageEntity": {
    "action": "Update",
    "entityId": "950485788",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb789d24bd977cb699f2cd2ce4f4e226b9bfaa384d2c57c5ba16459f3fefd0db0",
    "signature": "0x7861253c25fec9c6b0d7d68fbbb212ad63bebd32bab08b88fbfdf336140224584e5bd45097559cf95f86f9800a1dc8abd6de87a231879df6b83bc15abdc26da21b",
    "signer": "0x6CF29C21c9C0b405C773f3605658C095Af4c28EF",
    "userId": "950485788"
  }
}