{
  "manageEntity": {
    "action": "Update",
    "entityId": "216182698",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x32b6e9e92cb8fa09aa1e1c52781a6b108a4facbacd2a14439b2d06f599f496a8",
    "signature": "0x8ba19d2b62516428a9d5e167c777fc6cb20e48ea3defdab210aa5b49312069930f82ea8637bec2a42f7abac62db8f0550b66e0b1fd2e0ff493db54c0349de7f01c",
    "signer": "0x4913e43ec5763cF02DE847524AA887130A8B1d95",
    "userId": "216182698"
  }
}